CN103111664A - Bimetal hole saw connecting shank - Google Patents
Bimetal hole saw connecting shank Download PDFInfo
- Publication number
- CN103111664A CN103111664A CN2013100398086A CN201310039808A CN103111664A CN 103111664 A CN103111664 A CN 103111664A CN 2013100398086 A CN2013100398086 A CN 2013100398086A CN 201310039808 A CN201310039808 A CN 201310039808A CN 103111664 A CN103111664 A CN 103111664A
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- CN
- China
- Prior art keywords
- hole saw
- hole
- saw
- securing device
- bimetal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0426—Drills for trepanning with centering devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0473—Details about the connection between the driven shaft and the tubular cutting part; Arbors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a connecting shank, and particularly discloses a bimetal hole saw connecting shank. The invention provides the bimetal hole saw connecting shank for preventing a hole saw from swaying after the hole saw is installed. The bimetal hole saw connecting shank comprises a connecting shank body and a transmission pin, wherein the connecting shank body comprises a motive power connecting end, a drilling saw connecting end provided with hole saw connecting threads and a spotter installing hole, and an installing part which is provided with an installing through hole. The installing part is arranged between the motive power connecting end and the drilling saw connecting end, and the transmission pin is arranged in the installing through hole and can move along the axial direction of the installing through hole. The bimetal hole saw connecting shank further comprises a hole saw firming device, wherein the hole saw stable device is arranged on the connecting shank body through a thread structure and can moves along the axis of the connecting shank body through the thread structure, and the hole saw stable device firms the hole saw through the movement along the axis of the connecting shank body. After the hole saw is connected with the drilling saw connecting end and the transmission pin is pushed into a pin hole, the hole saw firming device is continued to be twisted to be attached tightly to the top surface of the hole saw, so that the hole saw cannot sway in use.
Description
Technical field
The present invention relates to a kind of connection handle, especially a kind of bimetal hole saw connects handle.
Background technology
But bimetal hole opening saw drilling metal, non-ferrous metal, timber, plastics and various artificial material such as laminate, MDF, thick china, asbestos board etc. are widely used in the industrial manufacturing market of building, maintenance and part.bimetal hole saw mainly comprises hole saw, pilot drill and connect handle, wherein connecing handle comprises and connects handle body and transmission pin, connect the handle body by the power link, boring saw link and installation position forms, the installation position is arranged on link and bores between the saw link, bore on the saw link and be provided with hole saw connecting thread and pilot drill installing hole, be provided with the installation through hole on the installation position, the axis that through hole is installed is with to connect the handle body axis parallel, the transmission pin is arranged on to be installed in through hole and can axially-movable in through hole, the transmission pin generally is fixed on slide mass, slide mass slidably is arranged on and connects on the handle body.Pilot drill is arranged in the pilot drill installing hole, hole saw is arranged on the hole saw connecting thread, the end face operated by rotary motion of hole saw has four symmetrical through holes, after hole saw is arranged on the hole saw connecting thread, the slip slide mass is pushed into the transmission pin in through hole, thereby so just can utilize the transmission pin to realize transmission for the hole saw transmitting torque.The structure of above-mentioned existing bimetal hole saw can be referring to Fig. 5 and Fig. 6.
Can find out from above-mentioned installation process, hole saw will be arranged on and connect on handle, both needed connecting thread to be fixed, also need the transmission pin to carry out transmission, under the operating position of reality, for the transmission pin is alignd with the through hole of hole saw end face, hole saw almost can't be close to the installation position that connects the handle body fully by screw thread, and the fit clearance of the fit clearance of screw thread and transmission pin and through hole all can cause rocking of hole saw.Namely connect in any case, bimetal hole saw is gapped with connecing connecting of handle body all the time, and this kind connecting mode can not firmly be connected in bimetal hole saw and connect on the handle body.This in use will there are the following problems:
1) in use hole saw is movable, and hole saw swings because of the existence clearance issues that is threaded when hole saw contact machined object surface, and easily surface to be machined being scratched affects cutting effect and outward appearance.
2) the hole saw cutter tooth produces because hole saw occurs to swing and impacts easily fracture when hole saw contact work piece, and cutter tooth easily is embedded in machined material, causes again holing and can't carry out smoothly.
3) because hole saw swings in boring procedure, it is poor that the work piece surface can fineness occur, and hole shape is poor the undesirable conditions such as step.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of bimetal hole saw of avoiding rocking after the hole saw installation and connects handle.
the present invention solves the bimetal hole saw that its technical problem adopts and connects handle, comprise and connect handle body and transmission pin, the described handle body that connects comprises the power link, be provided with the brill saw link of hole saw connecting thread and pilot drill installing hole and be provided with the installation position that through hole is installed and form, described installation position is arranged on the power link and bores between the saw link, described transmission pin is arranged on also can be along the through hole axially-movable is installed in the installation through hole, also comprise the hole saw securing device, described hole saw securing device is arranged on by helicitic texture and describedly connects on the handle body and can realize firm to hole saw along the axial-movement that connects the handle body by helicitic texture.
Further that the axially-movable of described transmission pin drives by the axially-movable of described hole saw securing device.
Be further, described hole saw securing device is comprised of the bottom of circle and nose circle vertically extends outside the bottom perisporium, the centre of described bottom is provided with connecting through hole, the end face of described perisporium is open end, described hole saw securing device is set in by connecting through hole and connects on the handle body, and described open end is towards boring the saw link.
Be further, be provided with annular protrusion on the bottom interior wall of described hole saw securing device, the dead in line of the axis of described annular protrusion and described hole saw securing device, be provided with circular orbit on described annular protrusion excircle sidewall, be provided with the guide runner of annular on the sidewall of described transmission pin, described guide runner cooperation is arranged on described circular orbit.
Be further, described helicitic texture comprises external screw thread and internal thread, and described internal thread is arranged on the connecting through hole inwall of described hole saw securing device, and described external screw thread is arranged on described power link.
Be further, also comprise shaft block ring, described shaft block ring is arranged on described power link with spacing described hole saw securing device.
Be further, described helicitic texture comprises external screw thread and internal thread, and described internal thread is arranged on the inner periphery side of described hole saw securing device, and described external screw thread is arranged on the circumferential side wall of described installation position.
Further to be provided with the annular knurl line on the excircle side of described hole saw securing device.
Further that described helicitic texture is left hand thread.
The invention has the beneficial effects as follows: owing to being provided with the hole saw securing device, therefore be connected at hole saw and bore the saw link, the transmission pin penetrates to the pin hole of hole saw, can continue to turn the hole saw securing device, make the end face that is close to hole saw of hole saw securing device, the trend of rocking of hole saw is just limited by the hole saw securing device like this, can in use not rock, more firm hole saw will have following advantage: do not swing when hole saw contact machined object surface, so hole saw affects cutting effect and outward appearance with regard to surface to be machined not being scratched; Hole saw contact machined object surface ratio is more steady, therefore can not occur producing because rocking the phenomenon that impulsive force causes cutter tooth to rupture, and has suffered boring procedure also more smooth; Hole saw advances along the direction of the application of force in boring procedure, and surface to be machined fineness is fine, and the undesirable conditions such as step can not appear in hole shape.
Description of drawings
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the A place enlarged drawing of Fig. 1;
Fig. 3 is the schematic diagram after the present invention tentatively installs hole saw and pilot drill;
Fig. 4 be the present invention install hole saw and pilot drill and fastening after schematic diagram;
Fig. 5 is the schematic diagram after prior art is tentatively installed hole saw and pilot drill;
Fig. 6 be prior art install hole saw and pilot drill and fastening after schematic diagram;
Parts, position and numbering in figure: connect handle body 1, transmission pin 2, hole saw securing device 3, helicitic texture 4, shaft block ring 5, hole saw 6, pilot drill 7, power link 11, bore saw link 12, installation position 13, guide runner 21, circular orbit 31, open end 32.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
as shown in Figure 1, the present invention includes and connect handle body 1 and transmission pin 2, the described handle body 1 that connects comprises power link 11, be provided with the brill saw link 12 of hole saw connecting thread and pilot drill installing hole and be provided with the installation position 13 that through hole is installed and form, described installation position 13 is arranged on power link 11 and bores between saw link 12, described transmission pin 2 is arranged on also can be along the through hole axially-movable is installed in the installation through hole, also comprise hole saw securing device 3, described hole saw securing device 3 is arranged on described connecing by helicitic texture 4 also can be by helicitic texture 4 along the axial-movement that connect handle body 1 on handle body 1, the axial-movement that described hole saw securing device 3 connects handle body 1 by the edge is realized firm to hole saw 6.
Hole saw securing device 3 can be realized in the following way, it is comprised of the bottom of circle and nose circle vertically extends outside the bottom perisporium, it mainly is the end cap shape, the centre of its bottom is provided with connecting through hole, the end face of its perisporium is open end 32, hole saw securing device 3 is set in by connecting through hole and connects on handle body 1, and described open end 32 is towards boring saw link 12.In use, pilot drill 7 is arranged in the pilot drill installing hole that bores on saw link 12, mounting structure generally adopts structure shown in Figure 3, namely utilizes holding screw that pilot drill 7 is fixed in the pilot drill installing hole.The end face of hole saw 6 is provided with screwed hole, utilize screwed hole just hole saw 6 can be installed to and bore on the hole saw connecting thread of sawing on link 12, when being connected to hole saw 6 on the hole saw connecting thread, should be noted that the pin installing hole with hole saw 6 end faces aligns with transmission pin 2.And then rotate hole saw securing device 3, and make the open end 32 of hole saw securing device 3 to the end face motion of hole saw 6, make open end 32 hold out against the end face of hole saw 6, transmission pin 2 is inserted in the pin installing hole of hole saw 6 gradually.So just completed the assembling of the present invention and hole saw, pilot drill, the structure chart after assembling as shown in Figure 4.After hole saw 6 assemblings are complete, hole saw 6 is circumferentially mainly by transmission pin 2 driving torques, it axially is being subject to the restriction of screw thread and hole saw securing device 3 simultaneously, hole saw securing device 3 not only itself can be close to restriction hole saw 6, also can make screw thread and the applying of hole saw connecting thread of hole saw 6 stay close close, make hole saw 6 be subject to the two-sided clamping of hole saw securing device 3 and screw thread, so just avoided rocking.
Above-mentioned embodiment utilizes open end 32 to hold out against firm hole saw, its open end 32 is also replaceable is firmly projection of multiple spot, be that hole saw securing device 3 evenly is provided with a plurality of firm projections on an end face of hole saw, when hole saw securing device 3 moves to stable position, firm projection holds out against on hole saw 6, makes hole saw 6 firm.Hole saw securing device 3 also can be set to tubular, coordinates open end 32 or firm projection to realize firmly.
For handled easily, as shown in Figures 1 to 4, the axially-movable of described transmission pin 2 drives by the axially-movable of described hole saw securing device 3.The motion of hole saw securing device 3 mainly contains both direction, one is along helicitic texture 4 circumferential movement, one is axially-movable, its axially-movable direction is identical with the direction of motion of transmission pin 2, therefore, in the interlock that hole saw securing device 3 and transmission pin 2 are set, both do not link in circumferential direction, and link at axial direction.Hole saw securing device 3 for the lid shape, in rotation hole saw securing device 3 energy natures transmission pin 2 is driven is inserted into the pin installing hole of hole saw 6, when the connecting through hole radius of hole saw securing device 3 less than transmission pin 2 axis when connecing handle body 1 axial line distance and add transmission pin 2 radius, hole saw securing device 3 can drive transmission pin 2 naturally to left movement during axially to left movement, on transmission pin 2, the resetting structure of spring and so on can be set, make hole saw securing device 3 axially to the right the time transmission pin 2 can automatically reset, such structure has been simplified operation undoubtedly.And when the connecting through hole radius of hole saw securing device 3 greater than transmission pin 2 axis when connecing handle body 1 axial line distance and add transmission pin 2 radius, transmission pin 2 just can directly pass connecting through hole, at this moment, the motion of transmission pin 2 just need to apply in addition power and make its axially-movable, for example as mode of the prior art in Fig. 5 and Fig. 6.
Concrete, as depicted in figs. 1 and 2, be provided with annular protrusion on the bottom interior wall of described hole saw securing device 3, the dead in line of the axis of described annular protrusion and described hole saw securing device 3, be provided with circular orbit 31 on described annular protrusion excircle sidewall, be provided with the guide runner 21 of annular on the sidewall of described transmission pin 2, described guide runner 21 cooperations are arranged on described circular orbit 31.At this moment, when 3 rotation of hole saw securing device, transmission pin 2 relies on guide runner 21 and circular orbit 31 relative slidings or rolling, and transmission pin 2 just can not be with hole saw securing device 3 circumferential movement like this; And in 3 rotations of hole saw securing device, hole saw securing device 3 relies on helicitic texture 4 axially-movables, and circular orbit 31 will at axial action guide runner 21, make 2 axially-movables of transmission pin.Therefore transmission pin 2 just can move back along with hole saw securing device 3 advances altogether altogether.As simple replacement scheme, also guide runner 21 can be arranged on annular protrusion, and circular orbit 31 is arranged on transmission pin 2.
As one embodiment of the present invention, as depicted in figs. 1 and 2, described helicitic texture 4 comprises external screw thread and internal thread, described internal thread is arranged on the connecting through hole inwall of described hole saw securing device 3, described external screw thread is arranged on the left-hand portion of described power link 11, and the left side is left side illustrated in figures 1 and 2.
Spacing for hole saw securing device 3 is carried out, the present invention also comprises shaft block ring 4, and described shaft block ring 4 is arranged on described power link 11 and is positioned at described externally threaded right side, and right-hand is that hole saw securing device 3 is away from the direction of hole saw 6.Shaft block ring 4 can stop hole saw securing device 3 in the right-hand member location, avoids hole saw securing device 3 to screw out screw thread to the right and breaks away from.When needs are dismantled, can at first dismantle shaft block ring 4, and then screw out hole saw securing device 3.So just, can effective spacing hole saw securing device 3.
As another embodiment of the invention, described helicitic texture 4 comprises external screw thread and internal thread, and described internal thread is arranged on the inner periphery side of described hole saw securing device 3, and described external screw thread is arranged on the circumferential side wall of described installation position 13.This embodiment can be directly used in the transformation prior art, and the hole saw securing device 3 that select this moment is tubular, and namely its connecting through hole is the same with its opening large.Hole saw securing device 3 inner peripheral walls arrange internal thread, and then the circumferential side wall of stating installation position 13 in prior art processes external screw thread, then hole saw securing device 3 are directly installed on installation position 13 to get final product.
For the ease of rotating hole saw securing device 3, be provided with the annular knurl line on the excircle side of described hole saw securing device 3.The annular knurl line can increase frictional force, skids when preventing from rotating hole saw securing device 3.
Concrete, described helicitic texture 4 is left hand thread, namely external screw thread and internal thread are left hand thread.When dextrorotation smear metal of the present invention, left hand thread can make and be connected more fasteningly between hole saw securing device 3 and connection handle body 1, avoids the phenomenon of becoming flexible.
Claims (9)
1. bimetal hole saw connects handle, comprise and connect handle body (1) and transmission pin (2), the described handle body (1) that connects comprises power link (11), be provided with the brill saw link (12) of hole saw connecting thread and pilot drill installing hole and be provided with the installation position (13) that through hole is installed and form, described installation position (13) is arranged on power link (11) and bores between saw link (12), described transmission pin (2) is arranged on also can be along the through hole axially-movable is installed in the installation through hole, it is characterized in that: also comprise hole saw securing device (3), described hole saw securing device (3) by helicitic texture (4) be arranged on described connect handle body (1) upper and can by helicitic texture (4) along the axial-movement that connects handle body (1) realize to hole saw firmly.
2. bimetal hole saw as claimed in claim 1 connects handle, it is characterized in that: the axially-movable of described transmission pin (2) drives by the axially-movable of described hole saw securing device (3).
3. bimetal hole saw as claimed in claim 2 connects handle, it is characterized in that: described hole saw securing device (3) is comprised of the bottom of circle and nose circle vertically extends outside the bottom perisporium, the centre of described bottom is provided with connecting through hole, the end face of described perisporium is open end (32), described hole saw securing device (3) is set in by connecting through hole and connects on handle body (1), and described open end (32) is towards boring saw link (12).
4. bimetal hole saw as claimed in claim 3 connects handle, it is characterized in that: be provided with annular protrusion on the bottom interior wall of described hole saw securing device (3), the dead in line of the axis of described annular protrusion and described hole saw securing device (3), be provided with circular orbit (31) on described annular protrusion excircle sidewall, be provided with the guide runner (21) of annular on the sidewall of described transmission pin (2), described guide runner (21) cooperation is arranged on described circular orbit (31).
5. bimetal hole saw as claimed in claim 3 connects handle, it is characterized in that: described helicitic texture (4) comprises external screw thread and internal thread, described internal thread is arranged on the connecting through hole inwall of described hole saw securing device (3), and described external screw thread is arranged on described power link (11).
6. bimetal hole saw as claimed in claim 1 connects handle, it is characterized in that: also comprise shaft block ring (4), it is upper with spacing described hole saw securing device (3) that described shaft block ring (4) is arranged on described power link (11).
7. bimetal hole saw as claimed in claim 3 connects handle, it is characterized in that: described helicitic texture (4) comprises external screw thread and internal thread, described internal thread is arranged on the inner periphery side of described hole saw securing device (3), and described external screw thread is arranged on the circumferential side wall of described installation position (13).
8. bimetal hole saw as claimed in claim 3 connects handle, it is characterized in that: be provided with the annular knurl line on the excircle side of described hole saw securing device (3).
9. the described bimetal hole saw of claim as arbitrary in claim 1 to 8 connects handle, it is characterized in that: described helicitic texture (4) is left hand thread.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310039808.6A CN103111664B (en) | 2013-02-01 | 2013-02-01 | Bimetal hole saw connects handle |
| PCT/CN2014/071236 WO2014117672A1 (en) | 2013-02-01 | 2014-01-23 | Connecting handle for bimetal hole saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310039808.6A CN103111664B (en) | 2013-02-01 | 2013-02-01 | Bimetal hole saw connects handle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103111664A true CN103111664A (en) | 2013-05-22 |
| CN103111664B CN103111664B (en) | 2015-08-19 |
Family
ID=48410077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310039808.6A Active CN103111664B (en) | 2013-02-01 | 2013-02-01 | Bimetal hole saw connects handle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103111664B (en) |
| WO (1) | WO2014117672A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014117672A1 (en) * | 2013-02-01 | 2014-08-07 | 成都三锐工具制造有限公司 | Connecting handle for bimetal hole saw |
| EP2845673A1 (en) * | 2013-09-10 | 2015-03-11 | Greenlee Textron Inc. | Arbor assembly, arbor and assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997015413A1 (en) * | 1995-10-27 | 1997-05-01 | Sandvik Ab: (Publ) | Hole saw |
| CN201172117Y (en) * | 2007-11-16 | 2008-12-31 | 布莱克和戴克公司 | Large hole saw mandrel device |
| CN201728405U (en) * | 2010-05-29 | 2011-02-02 | 杭州东方型钢机械有限公司 | Hole saw connecting rod with hexagonal quick coupler |
| CN201728399U (en) * | 2010-05-29 | 2011-02-02 | 杭州东方型钢机械有限公司 | Connecting rod for particle hole saw |
| CN202726139U (en) * | 2012-08-02 | 2013-02-13 | 慈溪光华实业有限公司 | Hole saw component capable of being quickly replaced |
| CN203184717U (en) * | 2013-02-01 | 2013-09-11 | 成都三锐工具制造有限公司 | Connecting handle for bi-metal hole saw |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR780301A0 (en) * | 2001-09-21 | 2001-10-11 | Keightley, Kym | Improved hole saw |
| WO2009021278A1 (en) * | 2007-08-10 | 2009-02-19 | Bradford Watt | A tool |
| CN201728400U (en) * | 2010-05-29 | 2011-02-02 | 杭州东方型钢机械有限公司 | Connecting rod of carbon steel hole saw |
| CN103111664B (en) * | 2013-02-01 | 2015-08-19 | 成都三锐工具制造有限公司 | Bimetal hole saw connects handle |
-
2013
- 2013-02-01 CN CN201310039808.6A patent/CN103111664B/en active Active
-
2014
- 2014-01-23 WO PCT/CN2014/071236 patent/WO2014117672A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997015413A1 (en) * | 1995-10-27 | 1997-05-01 | Sandvik Ab: (Publ) | Hole saw |
| CN201172117Y (en) * | 2007-11-16 | 2008-12-31 | 布莱克和戴克公司 | Large hole saw mandrel device |
| CN201728405U (en) * | 2010-05-29 | 2011-02-02 | 杭州东方型钢机械有限公司 | Hole saw connecting rod with hexagonal quick coupler |
| CN201728399U (en) * | 2010-05-29 | 2011-02-02 | 杭州东方型钢机械有限公司 | Connecting rod for particle hole saw |
| CN202726139U (en) * | 2012-08-02 | 2013-02-13 | 慈溪光华实业有限公司 | Hole saw component capable of being quickly replaced |
| CN203184717U (en) * | 2013-02-01 | 2013-09-11 | 成都三锐工具制造有限公司 | Connecting handle for bi-metal hole saw |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014117672A1 (en) * | 2013-02-01 | 2014-08-07 | 成都三锐工具制造有限公司 | Connecting handle for bimetal hole saw |
| EP2845673A1 (en) * | 2013-09-10 | 2015-03-11 | Greenlee Textron Inc. | Arbor assembly, arbor and assembly |
| CN104416378A (en) * | 2013-09-10 | 2015-03-18 | 格林利德事隆公司 | Arbor Assembly For Use With Cutting Device, Such As Cutter Or Hole Saw |
| US9248514B2 (en) | 2013-09-10 | 2016-02-02 | Textron Innovations Inc. | Arbor assembly for use with a cutting device, such as a cutter or hole saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103111664B (en) | 2015-08-19 |
| WO2014117672A1 (en) | 2014-08-07 |
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